<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .container {
      display: grid;
      grid-template-columns: 100px 200px 100px;
      grid-template-rows: 100px 100px;
      /* justify-items: center; */
      /* align-items: center; */
      /* place-items: center start; */
      justify-items: center;
    }
    .item {
      border: 1px solid #333;
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="item">1</div>
    <div class="item">2</div>
    <div class="item">3</div>
    <div class="item">4</div>
    <div class="item">5</div>
    <div class="item">6</div>
  </div>
</body>
</html>